Hinged back collapsible chair



Nw2 ma@ A MARKS 2,453,027'

HINGED BACK coLLAPsIBLE C HAIR Filgd April 8; 194e gwm Mmm A. AJM/f5 Patented Nov. 2, 1948 unirse stares PATENT OFFICE nINGnD BAoK-coLLAPsIBLE CHAIR. Armure. Marks, Portland, ore-g.

`Application April 8, 1946, SeralNo. `660,368

4 .Claims (ol. 155-148) The present inventionrelates to improvements in chairs and more particularly vto collapsible chairs. vOccasions often exist when it is desir-` able to carry a chair fabput Aones personin going from one place toanotlrer as to a picnic, ball game, and on an outing in general. It'is neces-` sarv for such purposes to reduce the dimensions ofthe chair or seat so as to limitits bulk, make it compact,.and render it iit tobe carried around in the usual close quarters of ra vehicle. This is the main purposeof my invention One of the lobjects thereof is .to provide'a collapsible chairzall oithepartsfof whichare shaped,`

knockdown chair with fmeans `for collapsing alli` the panelsthereof in suchla manner that they will all be surmounted overlappingly .in a superim posed manner.

With the above and `otherobjects in view, `my

invention `consists in the combination, arrangement and details of construction vdisclosed in the drawings and specification-and then more partieularly pointed out in the appended claims.

In the drawings, wherein similar reference characters designate similar parts throughout the respective views.

` Figure l is a side elevation of my invention.

Figure 2 is a front elevation thereof.

Figure 3 is a perspective view of my invention in a partially collapsed position.

Figure 4 is across-section taken online 4-4 of Figure 1 l Figure 5 is a side View of a hook employed in latching parts of my invention and Figure 6 is a fragmentary View of the back rest panel.

In the drawings, which are merely illustrative of mv invention the various parts thereof are detailed.

The chair is composed of a seat, panel, a back rest panel and seat supporting side panels interconnected movably for collapsation one upon the other. 'The uloackrest panel IIL'may be shapedso as to taper downwardly. For 4this ,purposepanel |50 willlhaveioppositely.incliningedges II,5I.2. It will be formed with a hand gripping slot I3 at its upper end. A minor portion I4 of the length of panel I0 has an incut arcuate recess I5 formed at its -lowlerrnost edge yto provide door rests fI. The opposing side edges of portion I4 of panel IIB will preferably loe-parallel as at Ill, I8. Where position I4 joins the-major portionof the length,

of panel I0 right angular shoulders I9 are formed whichform the edgesI I, I 2 or panel I0.

The seat panel of the chair is denoted at 26, Panel is not as longas panel IU, extending the `full length only of the major portionof `length of panel I. The upper corners of panels I0 and 25 mair be rounded out as shown at A. `Seat panel 26 is hinged at 29 topanel -I 0. l

Back rest panel Ill is formed, beyond or inner end of the seat :panel `2t` with a transverse arcuate edge I5 forming a concave face as shown in Figure 3. Spanning `this face isla rod 2U. which is secured at oppositeends vbyscrews 2I directly to back rest panel portion I4,the exe treme outer ends or terminals of rod 20 extend beyond the `edges Il, `I8 of the panel -IIl `where they are formed with pins 22 lhavingheads 23.,

These seat supporting panels :24, 25 arel designed to be hinged "in relation to seat `panel 26 in such a manner that they may fold one on the other on their hinges 21 `and `32 respectively in collapsed surmounted position on'topvof panel 26.

, :For this purpose thehinges 21 are fastened t0.;

one 'of the `margins of the seat panel 26 iiush1 with" the `adjacent marginal edge. `One marginal 'edge 26a of panel 24 is chamferedrat opposite ends to provide recesses Zlib in` which hinge platesof hinges .2l are secured. This construction assures that when panel `2li is folded in erect position its edge 26a will abut seat panel `2li andbe held by the latterragainst further movement. In this way panel 24 will not, as it swings to openseat supporting-position, swing over a greater arc than degrees where it Awill depend at right `anglesl from seat panel 26,

The other seat supporting panel 25 hingedvdirectly upon seat panel 26. 1A piecell,

substantially the shape of a segmentof a circle,

is secured to amarginal position of the seat panel 26 `in such a manner that its straight 0edge i190` (Figure 2) is flush with adiacent edge "of `seat panel 26,;and its corner edge 3| extends inwardly. The hinges 32 'secure panel 25 in the vicinity of the straight edge margin `of piece 3&3 in :suche manner "that when `panel ZlisA folded up in erect perpendicular position `upon seat panel 26 its `up-` per edge will abut the panel 26, which assures'that.

the segmental edge 3l vof piece 30. `Panel 25 isI also dormedupon -its front edge with segmental recess and `edge 28a and upon its bottom edge with segmental `edge, 30a.

`Sleat:supporting panels 42A and `ZSuare also the lower is not seat panel 26 has been folded back in surmounting position upon back rest panel lil. Panel 24 has been folded back yin surmounted position upon seat panelv 26. `Panel 25 has been left unfolded to show segment-shaped piece 3B. All of the `parts being thus collapsed, they may be tied together so as not to open out. Rod 23 mayl easily -be grasped by the hand inserted' into view I5 of the back rest panel position I4, and handle like, permits the collapsed chair to be carried about conveniently.

When it isdesired to erect all partsof the foldable chair into formation of a conveniently shaped chair or seat, the procedure will be as follows.

The seat supporting panels 24 and 25 will iirst be fully opened and made to abut seat panel '23. They will then be let down with the recesses bottom rest I6 upon the ground or floor so as to support the seat panel'Z in horizontal position.l

In order to prevent collapse of the seat supporting panels 24, and also support back rest panel I 0 in upright position, the back rest panel I3, will be tilted back on its hinges 25 to cause its minor rectangular portion I4 to project between the side panels 24, 25 as shown in dotted lines in Figure 1. In this position of panel I il, the opposing side edgesof portion I4 thereof may abut panels 24 and 25. In this way panels 24,

25 Willclose against the edges of portion I4 ofl panel AIlll so that they cannot move down or collapse upon their hinges Zi and 32.

A portion I4 of panel IIJ moves inwardly be,- tween panels 24 and 2,5 the ends of rod 29 secured thereto are free to enter recesses `33, 34 of these panelsat the same time in such a manner that pintles 22 thereof will project beyond the faces of panels 24, 25. l v

The hook bills 31 will then be let down so as to engage around the pins 22 ofV rod 2li and be confined by the heads 32 of these pins. This assures that the back rest panel I0 of the chair will remain in a rigidly erect position, and that allu panels comprising the collapsible chair are securely held in interconnected releasable position. It will be seen that when the panels are folded back into collapsed' relation upon seat panel 26 that segmental edge 3Ia thereof will nicely coincide with segmental edge 3l on sector-shape piece 30. It ywill also be seen that shoulder I9 of panel I0 may be caused, as in Figure 2, to seat upon the top edges of panels 24 and 25.

`I do not intend to limit myself to the exact details of construction disclosed in the drawings and speciiication herein but intend to cover all variations thereof.

What I desire to claim is:

1. A device as described consisting of oppositely arranged upright seatsupporting panels formed with horizontal elongated recesses, a seat surmounting the top edges of said panels, a back rest movably mounted to said seat in surmountable relationship and having its lower portion e arranged to extend between said panels, studs carried by opposing edges of said lower portion of the back rest, entering said recesses and having annular grooves terminally, with complemental engaging hooks carried by said panels to latch said back rest erect upon said seat.

2. In a device as described, the combination cfa back rest panel formed with a recess upon one end edge thereof, a rod spanning said recess, being attached to said panel and having its opposite ends projecting beyond the side edges of the panel and formed with headed pins, a seat hingedly connected to said back rest panel, a seat supporting pair of oppositely arranged panels engageable with said back rest panel and hinged on said seat in a manner'that said back rest panel may move from collapsed position to erect position to close said supporting panels upon opposing edges of said back rest panel, said seat supporting panels being formed with recesses opening out of their rear edges into which the ends of said rod project as said back rest panel moves into a position between said seat supporting panels, and hooks movably carried by said seat supi porting panels engaging said pins to latch the back rest panel in' erect position.

3. In combination a seat panel having a segment-shaped piece secured thereupon with its straight edge ush with one of the side edges of said panel, a pair of seat supporting panels having top edges hinged, respectively the first upon one margin of the seat and the second upon the straight marginal edge of the sector shaped piece, and having bottom edges formedwith concave recesses, the first supporting panel swinging down in overlapping relation upon said seat with its concave recessed edge coinciding with the convex edge of said segment-shaped piece, the sec#v ond supporting panel swinging down into overlapping position upon said rst supporting panel and said sector shaped piece, and a prop hinged transversely along the rear edge of the seat so as to swing between said seat supporting panels for the purpose of lspreading them apart.

4. Inl combination a seat having a pair of supporting panels arranged at opposite sides thereof, said panels formed with horizontal recessesv upon their rear edges, a back rest panel having itsl major length extending above said seat in hinged relation and having a minor portion ex-` tendingslidably between said supporting panels, oppositely arranged studs carried by the minor portion of said back rest panel designed to move into said recesses, and means on said seat supporting panels engaging said studs to hold the baci: rest panel in rigid upright position relativelyv to said seat.

ARTHUR A. MARKS.

REFERENCES crean llihe following references are of record Great Britain Nov. 26, 1931 

